Display correct count in price slider if range ‚from value‘ = ‚to value‘

[annakoehler]

f.e. we have products in shop with price 100$. If we make in price slider "from value" = "to value", we got "No products in the selected range." message. Also if we open direct url https://some_shop/some_url?price=100-100 we didn't see the products with price 100$

[annakoehler]

this is also related to the fix b647b03 and issue #381

[annakoehler]

we had the problem not with price, but with other attribute. I saw you did changes for price and you have an step -0,01, but it doesn't work if you have no decimal numbers

[rbayet]

While the issue does exist when min = max in the slider, changing the behavior of the filter would lead to other problems, because the slider is built around an histogram which takes the floor() of a price.
So, considering you have in the middle of your slider four products with actual prices 68.0, 68.30, 69.0 and 69.30, the corresponding histogram slots will be :

• 68 = 2
• 69 = 2

At the moment, if you put min on 68 and max on 69, the number of available products will be displayed as 2 (because of the lt).
And the resulting page, on a price=68-69 will also display 2 products because of the (lt).

Now, if we adopt your changes, and if you put min on 68 and max on 69, the number of available products displayed will be 4 (because of the lte).
But on the resulting page, you will only see 3 products, because ['gt' => 68, 'lte' => 69] does not include 69.30.

[rbayet]

Not closing this PR right now, but the correct approach would be to prevent the from and to value to be equal.